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| Item | Low-iodine group | High-iodine group | t-value | P-value |
|---|---|---|---|---|
| CTDIvol (mGy) | 3.64 ± 0.34 | 6.15 ± 3.76 | -4.705 | 0.0001 |
| DLP (mGy/cm) | 258.83 ± 29.92 | 396.33 ± 36.10 | -20.736 | 0.0001 |
| Effective dose (mSv) | 4.40 ± 0.51 | 6.73 ± 0.61 | -20.736 | 0.0001 |
| Iodine weight (g) | 20.36 ± 2.65 | 28 ± 1.98 | -17.374 | 0.0001 |
CTDIvol, CT dose index volume; DLP, dose length product; ED, effective dose.
